BROADCOM BCM2835 ARM ARCHITECTURE
M: Eric Anholt <eric@anholt.net>
M: Stefan Wahren <wahrenst@gmx.net>
+L: bcm-kernel-feedback-list@broadcom.com
L: linux-rpi-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
T: git git://github.com/anholt/linux
BROADCOM BCM53573 ARM ARCHITECTURE
M: Rafał Miłecki <rafal@milecki.pl>
+L: bcm-kernel-feedback-list@broadcom.com
L: linux-arm-kernel@lists.infradead.org
S: Maintained
F: arch/arm/boot/dts/bcm53573*
};
chosen {
- bootargs = "console=ttyS0,19200n8 root=/dev/sda1 rw rootwait";
+ bootargs = "console=ttyS0,19200n8 root=/dev/sda1 rw rootwait consoleblank=300";
stdout-path = "uart0:19200n8";
};
/ {
model = "D-Link DNS-313 1-Bay Network Storage Enclosure";
- compatible = "dlink,dir-313", "cortina,gemini";
+ compatible = "dlink,dns-313", "cortina,gemini";
#address-cells = <1>;
#size-cells = <1>;
pwm1: pwm@2080000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x02080000 0x4000>;
- interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM1>,
<&clks IMX6UL_CLK_PWM1>;
clock-names = "ipg", "per";
pwm2: pwm@2084000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x02084000 0x4000>;
- interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM2>,
<&clks IMX6UL_CLK_PWM2>;
clock-names = "ipg", "per";
pwm3: pwm@2088000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x02088000 0x4000>;
- interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM3>,
<&clks IMX6UL_CLK_PWM3>;
clock-names = "ipg", "per";
pwm4: pwm@208c000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x0208c000 0x4000>;
- interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM4>,
<&clks IMX6UL_CLK_PWM4>;
clock-names = "ipg", "per";
<GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>,
clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>;
clock-names = "bus", "core";
operating-points-v2 = <&gpu_opp_table>;
- switch-delay = <0xffff>;
};
};
}; /* end of / */
opp-255000000 {
opp-hz = /bits/ 64 <255000000>;
- opp-microvolt = <1150000>;
+ opp-microvolt = <1100000>;
};
opp-364300000 {
opp-hz = /bits/ 64 <364300000>;
- opp-microvolt = <1150000>;
+ opp-microvolt = <1100000>;
};
opp-425000000 {
opp-hz = /bits/ 64 <425000000>;
- opp-microvolt = <1150000>;
+ opp-microvolt = <1100000>;
};
opp-510000000 {
opp-hz = /bits/ 64 <510000000>;
- opp-microvolt = <1150000>;
+ opp-microvolt = <1100000>;
};
opp-637500000 {
opp-hz = /bits/ 64 <637500000>;
- opp-microvolt = <1150000>;
+ opp-microvolt = <1100000>;
turbo-mode;
};
};
clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>;
clock-names = "bus", "core";
operating-points-v2 = <&gpu_opp_table>;
- switch-delay = <0xffff>;
};
};
}; /* end of / */
* registers, and omap3xxx_prm_reconfigure_io_chain() must be called.
* No return value.
*/
-static void __init omap3xxx_prm_enable_io_wakeup(void)
+static void omap3xxx_prm_enable_io_wakeup(void)
{
if (prm_features & PRM_HAS_IO_WAKEUP)
omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD,
enable-method = "psci";
clocks = <&clockgen 1 0>;
next-level-cache = <&l2>;
- cpu-idle-states = <&CPU_PH20>;
+ cpu-idle-states = <&CPU_PW20>;
};
cpu1: cpu@1 {
enable-method = "psci";
clocks = <&clockgen 1 0>;
next-level-cache = <&l2>;
- cpu-idle-states = <&CPU_PH20>;
+ cpu-idle-states = <&CPU_PW20>;
};
l2: l2-cache {
*/
entry-method = "arm,psci";
- CPU_PH20: cpu-ph20 {
- compatible = "arm,idle-state";
- idle-state-name = "PH20";
- arm,psci-suspend-param = <0x00010000>;
- entry-latency-us = <1000>;
- exit-latency-us = <1000>;
- min-residency-us = <3000>;
+ CPU_PW20: cpu-pw20 {
+ compatible = "arm,idle-state";
+ idle-state-name = "PW20";
+ arm,psci-suspend-param = <0x0>;
+ entry-latency-us = <2000>;
+ exit-latency-us = <2000>;
+ min-residency-us = <6000>;
};
};
CONFIG_RTC_DRV_IMX_SC=m
CONFIG_RTC_DRV_XGENE=y
CONFIG_DMADEVICES=y
+CONFIG_FSL_EDMA=y
CONFIG_DMA_BCM2835=m
CONFIG_K3_DMA=y
CONFIG_MV_XOR=y
#endif
struct rt_sigframe {
+ /*
+ * pad[3] is compatible with the same struct defined in
+ * gcc/libgcc/config/csky/linux-unwind.h
+ */
+ int pad[3];
struct siginfo info;
struct ucontext uc;
};
/* 32-bit PC relative address */
*loc = val - dot - 8 + addend;
break;
+ case R_PARISC_PCREL64:
+ /* 64-bit PC relative address */
+ *loc64 = val - dot - 8 + addend;
+ break;
case R_PARISC_DIR64:
/* 64-bit effective address */
*loc64 = val + addend;
void slb_setup_new_exec(void);
+static int realloc_context_ids(mm_context_t *ctx)
+{
+ int i, id;
+
+ /*
+ * id 0 (aka. ctx->id) is special, we always allocate a new one, even if
+ * there wasn't one allocated previously (which happens in the exec
+ * case where ctx is newly allocated).
+ *
+ * We have to be a bit careful here. We must keep the existing ids in
+ * the array, so that we can test if they're non-zero to decide if we
+ * need to allocate a new one. However in case of error we must free the
+ * ids we've allocated but *not* any of the existing ones (or risk a
+ * UAF). That's why we decrement i at the start of the error handling
+ * loop, to skip the id that we just tested but couldn't reallocate.
+ */
+ for (i = 0; i < ARRAY_SIZE(ctx->extended_id); i++) {
+ if (i == 0 || ctx->extended_id[i]) {
+ id = hash__alloc_context_id();
+ if (id < 0)
+ goto error;
+
+ ctx->extended_id[i] = id;
+ }
+ }
+
+ /* The caller expects us to return id */
+ return ctx->id;
+
+error:
+ for (i--; i >= 0; i--) {
+ if (ctx->extended_id[i])
+ ida_free(&mmu_context_ida, ctx->extended_id[i]);
+ }
+
+ return id;
+}
+
static int hash__init_new_context(struct mm_struct *mm)
{
int index;
- index = hash__alloc_context_id();
- if (index < 0)
- return index;
-
mm->context.hash_context = kmalloc(sizeof(struct hash_mm_context),
GFP_KERNEL);
- if (!mm->context.hash_context) {
- ida_free(&mmu_context_ida, index);
+ if (!mm->context.hash_context)
return -ENOMEM;
- }
/*
* The old code would re-promote on fork, we don't do that when using
mm->context.hash_context->spt = kmalloc(sizeof(struct subpage_prot_table),
GFP_KERNEL);
if (!mm->context.hash_context->spt) {
- ida_free(&mmu_context_ida, index);
kfree(mm->context.hash_context);
return -ENOMEM;
}
}
#endif
+ }
+ index = realloc_context_ids(&mm->context);
+ if (index < 0) {
+#ifdef CONFIG_PPC_SUBPAGE_PROT
+ kfree(mm->context.hash_context->spt);
+#endif
+ kfree(mm->context.hash_context);
+ return index;
}
pkey_mm_init(mm);
* containing only random (seeky) I/O are prevented from being tagged
* as soft real-time.
*/
-#define BFQQ_TOTALLY_SEEKY(bfqq) (bfqq->seek_history & -1)
+#define BFQQ_TOTALLY_SEEKY(bfqq) (bfqq->seek_history == -1)
/* Min number of samples required to perform peak-rate update */
#define BFQ_RATE_MIN_SAMPLES 32
static int cfag12864bfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
- return vm_insert_page(vma, vma->vm_start,
- virt_to_page(cfag12864b_buffer));
+ struct page *pages = virt_to_page(cfag12864b_buffer);
+
+ return vm_map_pages_zero(vma, &pages, 1);
}
static struct fb_ops cfag12864bfb_ops = {
static int ht16k33_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
struct ht16k33_priv *priv = info->par;
+ struct page *pages = virt_to_page(priv->fbdev.buffer);
- return vm_insert_page(vma, vma->vm_start,
- virt_to_page(priv->fbdev.buffer));
+ return vm_map_pages_zero(vma, &pages, 1);
}
static struct fb_ops ht16k33_fb_ops = {
const char *dev_id = dev ? dev_name(dev) : NULL;
struct device_node *np = core->of_node;
- if (np && index >= 0)
+ if (np && (name || index >= 0))
hw = of_clk_get_hw(np, index, name);
/*
[CLKID_MALI_1_DIV] = &g12a_mali_1_div.hw,
[CLKID_MALI_1] = &g12a_mali_1.hw,
[CLKID_MALI] = &g12a_mali.hw,
- [CLKID_MPLL_5OM_DIV] = &g12a_mpll_50m_div.hw,
- [CLKID_MPLL_5OM] = &g12a_mpll_50m.hw,
+ [CLKID_MPLL_50M_DIV] = &g12a_mpll_50m_div.hw,
+ [CLKID_MPLL_50M] = &g12a_mpll_50m.hw,
[CLKID_SYS_PLL_DIV16_EN] = &g12a_sys_pll_div16_en.hw,
[CLKID_SYS_PLL_DIV16] = &g12a_sys_pll_div16.hw,
[CLKID_CPU_CLK_DYN0_SEL] = &g12a_cpu_clk_premux0.hw,
#define CLKID_HDMI_DIV 167
#define CLKID_MALI_0_DIV 170
#define CLKID_MALI_1_DIV 173
-#define CLKID_MPLL_5OM_DIV 176
+#define CLKID_MPLL_50M_DIV 176
#define CLKID_SYS_PLL_DIV16_EN 178
#define CLKID_SYS_PLL_DIV16 179
#define CLKID_CPU_CLK_DYN0_SEL 180
},
};
-static const char * const mmeson8b_vpu_0_1_parent_names[] = {
+static const char * const meson8b_vpu_0_1_parent_names[] = {
"fclk_div4", "fclk_div3", "fclk_div5", "fclk_div7"
};
.hw.init = &(struct clk_init_data){
.name = "vpu_0_sel",
.ops = &clk_regmap_mux_ops,
- .parent_names = mmeson8b_vpu_0_1_parent_names,
- .num_parents = ARRAY_SIZE(mmeson8b_vpu_0_1_parent_names),
+ .parent_names = meson8b_vpu_0_1_parent_names,
+ .num_parents = ARRAY_SIZE(meson8b_vpu_0_1_parent_names),
.flags = CLK_SET_RATE_PARENT,
},
};
.hw.init = &(struct clk_init_data){
.name = "vpu_1_sel",
.ops = &clk_regmap_mux_ops,
- .parent_names = mmeson8b_vpu_0_1_parent_names,
- .num_parents = ARRAY_SIZE(mmeson8b_vpu_0_1_parent_names),
+ .parent_names = meson8b_vpu_0_1_parent_names,
+ .num_parents = ARRAY_SIZE(meson8b_vpu_0_1_parent_names),
.flags = CLK_SET_RATE_PARENT,
},
};
{ STRATIX10_NOC_CLK, "noc_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux),
0, 0, 0, 0x3C, 1},
{ STRATIX10_EMAC_A_FREE_CLK, "emaca_free_clk", NULL, emaca_free_mux, ARRAY_SIZE(emaca_free_mux),
- 0, 0, 4, 0xB0, 0},
+ 0, 0, 2, 0xB0, 0},
{ STRATIX10_EMAC_B_FREE_CLK, "emacb_free_clk", NULL, emacb_free_mux, ARRAY_SIZE(emacb_free_mux),
- 0, 0, 4, 0xB0, 1},
+ 0, 0, 2, 0xB0, 1},
{ STRATIX10_EMAC_PTP_FREE_CLK, "emac_ptp_free_clk", NULL, emac_ptp_free_mux,
ARRAY_SIZE(emac_ptp_free_mux), 0, 0, 4, 0xB0, 2},
{ STRATIX10_GPIO_DB_FREE_CLK, "gpio_db_free_clk", NULL, gpio_db_free_mux,
{ TEGRA210_CLK_I2S3_SYNC, TEGRA210_CLK_CLK_MAX, 24576000, 0 },
{ TEGRA210_CLK_I2S4_SYNC, TEGRA210_CLK_CLK_MAX, 24576000, 0 },
{ TEGRA210_CLK_VIMCLK_SYNC, TEGRA210_CLK_CLK_MAX, 24576000, 0 },
+ { TEGRA210_CLK_HDA, TEGRA210_CLK_PLL_P, 51000000, 0 },
+ { TEGRA210_CLK_HDA2CODEC_2X, TEGRA210_CLK_PLL_P, 48000000, 0 },
/* This MUST be the last entry. */
{ TEGRA210_CLK_CLK_MAX, TEGRA210_CLK_CLK_MAX, 0, 0 },
};
{
struct omap_clkctrl_provider *provider = data;
struct omap_clkctrl_clk *entry;
+ bool found = false;
if (clkspec->args_count != 2)
return ERR_PTR(-EINVAL);
list_for_each_entry(entry, &provider->clocks, node) {
if (entry->reg_offset == clkspec->args[0] &&
- entry->bit_offset == clkspec->args[1])
+ entry->bit_offset == clkspec->args[1]) {
+ found = true;
break;
+ }
}
- if (!entry)
+ if (!found)
return ERR_PTR(-EINVAL);
return entry->clk;
#define HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP 0x1220
#define HID_DEVICE_ID_ALPS_U1 0x1215
#define HID_DEVICE_ID_ALPS_T4_BTNLESS 0x120C
+#define HID_DEVICE_ID_ALPS_1222 0x1222
#define USB_VENDOR_ID_AMI 0x046b
#define USB_DEVICE_ID_CHICONY_MULTI_TOUCH 0xb19d
#define USB_DEVICE_ID_CHICONY_WIRELESS 0x0618
#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE 0x1053
+#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2 0x0939
#define USB_DEVICE_ID_CHICONY_WIRELESS2 0x1123
#define USB_DEVICE_ID_ASUS_AK1D 0x1125
#define USB_DEVICE_ID_CHICONY_TOSHIBA_WT10A 0x1408
#define USB_VENDOR_ID_HUION 0x256c
#define USB_DEVICE_ID_HUION_TABLET 0x006e
+#define USB_DEVICE_ID_HUION_HS64 0x006d
#define USB_VENDOR_ID_IBM 0x04b3
#define USB_DEVICE_ID_IBM_SCROLLPOINT_III 0x3100
#define REPORT_ID_HIDPP_SHORT 0x10
#define REPORT_ID_HIDPP_LONG 0x11
+#define REPORT_ID_HIDPP_VERY_LONG 0x12
#define HIDPP_REPORT_SHORT_LENGTH 7
#define HIDPP_REPORT_LONG_LENGTH 20
int ret;
if ((buf[0] == REPORT_ID_HIDPP_SHORT) ||
- (buf[0] == REPORT_ID_HIDPP_LONG)) {
+ (buf[0] == REPORT_ID_HIDPP_LONG) ||
+ (buf[0] == REPORT_ID_HIDPP_VERY_LONG)) {
if (count < 2)
return -EINVAL;
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ALPS_JP,
HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
+ { .driver_data = MT_CLS_WIN_8_DUAL,
+ HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+ USB_VENDOR_ID_ALPS_JP,
+ HID_DEVICE_ID_ALPS_1222) },
/* Lenovo X1 TAB Gen 2 */
{ .driver_data = MT_CLS_WIN_8_DUAL,
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
+ { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK), HID_QUIRK_NOGET },
USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HUION,
USB_DEVICE_ID_HUION_TABLET) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_HUION,
+ USB_DEVICE_ID_HUION_HS64) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_HUION_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
/* FALL THROUGH */
case VID_PID(USB_VENDOR_ID_HUION,
USB_DEVICE_ID_HUION_TABLET):
+ case VID_PID(USB_VENDOR_ID_HUION,
+ USB_DEVICE_ID_HUION_HS64):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_HUION_TABLET):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
goto end_err_fw_release;
release_firmware(fw);
- kfree(filename);
dev_info(cl_data_to_dev(client_data), "ISH firmware %s loaded\n",
filename);
+ kfree(filename);
return 0;
end_err_fw_release:
*/
static int hid_ishtp_cl_suspend(struct device *device)
{
- struct ishtp_cl_device *cl_device = dev_get_drvdata(device);
+ struct ishtp_cl_device *cl_device = ishtp_dev_to_cl_device(device);
struct ishtp_cl *hid_ishtp_cl = ishtp_get_drvdata(cl_device);
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
*/
static int hid_ishtp_cl_resume(struct device *device)
{
- struct ishtp_cl_device *cl_device = dev_get_drvdata(device);
+ struct ishtp_cl_device *cl_device = ishtp_dev_to_cl_device(device);
struct ishtp_cl *hid_ishtp_cl = ishtp_get_drvdata(cl_device);
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
}
ishtp_device_ready = true;
- dev_set_drvdata(&device->dev, device);
return device;
}
}
EXPORT_SYMBOL(ishtp_get_drvdata);
+/**
+ * ishtp_dev_to_cl_device() - get ishtp_cl_device instance from device instance
+ * @device: device instance
+ *
+ * Get ish_cl_device instance which embeds device instance in it.
+ *
+ * Return: pointer to ishtp_cl_device instance
+ */
+struct ishtp_cl_device *ishtp_dev_to_cl_device(struct device *device)
+{
+ return to_ishtp_cl_device(device);
+}
+EXPORT_SYMBOL(ishtp_dev_to_cl_device);
+
/**
* ishtp_bus_new_client() - Create a new client
* @dev: ISHTP device instance
return ERR_PTR(-EINVAL);
}
/* target_args */
- dev->target_args_array[n] = kstrndup(field[3], GFP_KERNEL,
- DM_MAX_STR_SIZE);
+ dev->target_args_array[n] = kstrndup(field[3], DM_MAX_STR_SIZE,
+ GFP_KERNEL);
if (!dev->target_args_array[n])
return ERR_PTR(-ENOMEM);
return 0;
if (strlen(create) >= DM_MAX_STR_SIZE) {
- DMERR("Argument is too big. Limit is %d\n", DM_MAX_STR_SIZE);
+ DMERR("Argument is too big. Limit is %d", DM_MAX_STR_SIZE);
return -EINVAL;
}
- str = kstrndup(create, GFP_KERNEL, DM_MAX_STR_SIZE);
+ str = kstrndup(create, DM_MAX_STR_SIZE, GFP_KERNEL);
if (!str)
return -ENOMEM;
if (r)
goto out;
- DMINFO("waiting for all devices to be available before creating mapped devices\n");
+ DMINFO("waiting for all devices to be available before creating mapped devices");
wait_for_device_probe();
list_for_each_entry(dev, &devices, list) {
#define WRITE_LOG_VERSION 1ULL
#define WRITE_LOG_MAGIC 0x6a736677736872ULL
+#define WRITE_LOG_SUPER_SECTOR 0
/*
* The disk format for this is braindead simple.
struct list_head logging_blocks;
wait_queue_head_t wait;
struct task_struct *log_kthread;
+ struct completion super_done;
};
struct pending_block {
bio_put(bio);
}
+static void log_end_super(struct bio *bio)
+{
+ struct log_writes_c *lc = bio->bi_private;
+
+ complete(&lc->super_done);
+ log_end_io(bio);
+}
+
/*
* Meant to be called if there is an error, it will free all the pages
* associated with the block.
bio->bi_iter.bi_size = 0;
bio->bi_iter.bi_sector = sector;
bio_set_dev(bio, lc->logdev->bdev);
- bio->bi_end_io = log_end_io;
+ bio->bi_end_io = (sector == WRITE_LOG_SUPER_SECTOR) ?
+ log_end_super : log_end_io;
bio->bi_private = lc;
bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
super.nr_entries = cpu_to_le64(lc->logged_entries);
super.sectorsize = cpu_to_le32(lc->sectorsize);
- if (write_metadata(lc, &super, sizeof(super), NULL, 0, 0)) {
+ if (write_metadata(lc, &super, sizeof(super), NULL, 0,
+ WRITE_LOG_SUPER_SECTOR)) {
DMERR("Couldn't write super");
return -1;
}
+ /*
+ * Super sector should be writen in-order, otherwise the
+ * nr_entries could be rewritten incorrectly by an old bio.
+ */
+ wait_for_completion_io(&lc->super_done);
+
return 0;
}
INIT_LIST_HEAD(&lc->unflushed_blocks);
INIT_LIST_HEAD(&lc->logging_blocks);
init_waitqueue_head(&lc->wait);
+ init_completion(&lc->super_done);
atomic_set(&lc->io_blocks, 0);
atomic_set(&lc->pending_blocks, 0);
gfp = GFP_NOIO;
}
argv = kmalloc_array(new_size, sizeof(*argv), gfp);
- if (argv) {
+ if (argv && old_argv) {
memcpy(argv, old_argv, *size * sizeof(*argv));
*size = new_size;
}
BUG();
}
- DMERR("%s: %s block %llu is corrupted", v->data_dev->name, type_str,
- block);
+ DMERR_LIMIT("%s: %s block %llu is corrupted", v->data_dev->name,
+ type_str, block);
if (v->corrupted_errs == DM_VERITY_MAX_CORRUPTED_ERRS)
DMERR("%s: reached maximum errors", v->data_dev->name);
static irqreturn_t stmfx_irq_handler(int irq, void *data)
{
struct stmfx *stmfx = data;
- unsigned long n, pending;
- u32 ack;
- int ret;
+ unsigned long bits;
+ u32 pending, ack;
+ int n, ret;
- ret = regmap_read(stmfx->map, STMFX_REG_IRQ_PENDING,
- (u32 *)&pending);
+ ret = regmap_read(stmfx->map, STMFX_REG_IRQ_PENDING, &pending);
if (ret)
return IRQ_NONE;
return IRQ_NONE;
}
- for_each_set_bit(n, &pending, STMFX_REG_IRQ_SRC_MAX)
+ bits = pending;
+ for_each_set_bit(n, &bits, STMFX_REG_IRQ_SRC_MAX)
handle_nested_irq(irq_find_mapping(stmfx->irq_domain, n));
return IRQ_HANDLED;
memorg = nanddev_get_memorg(&chip->base);
memorg->planes_per_lun = 1;
memorg->luns_per_target = 1;
- memorg->ntargets = 1;
/*
* Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
if (ret)
return ret;
+ memorg->ntargets = maxchips;
+
/* Read the flash type */
ret = nand_detect(chip, table);
if (ret) {
return 0;
}
+/**
+ * spi_nor_clear_sr_bp() - clear the Status Register Block Protection bits.
+ * @nor: pointer to a 'struct spi_nor'
+ *
+ * Read-modify-write function that clears the Block Protection bits from the
+ * Status Register without affecting other bits.
+ *
+ * Return: 0 on success, -errno otherwise.
+ */
+static int spi_nor_clear_sr_bp(struct spi_nor *nor)
+{
+ int ret;
+ u8 mask = SR_BP2 | SR_BP1 | SR_BP0;
+
+ ret = read_sr(nor);
+ if (ret < 0) {
+ dev_err(nor->dev, "error while reading status register\n");
+ return ret;
+ }
+
+ write_enable(nor);
+
+ ret = write_sr(nor, ret & ~mask);
+ if (ret) {
+ dev_err(nor->dev, "write to status register failed\n");
+ return ret;
+ }
+
+ ret = spi_nor_wait_till_ready(nor);
+ if (ret)
+ dev_err(nor->dev, "timeout while writing status register\n");
+ return ret;
+}
+
+/**
+ * spi_nor_spansion_clear_sr_bp() - clear the Status Register Block Protection
+ * bits on spansion flashes.
+ * @nor: pointer to a 'struct spi_nor'
+ *
+ * Read-modify-write function that clears the Block Protection bits from the
+ * Status Register without affecting other bits. The function is tightly
+ * coupled with the spansion_quad_enable() function. Both assume that the Write
+ * Register with 16 bits, together with the Read Configuration Register (35h)
+ * instructions are supported.
+ *
+ * Return: 0 on success, -errno otherwise.
+ */
+static int spi_nor_spansion_clear_sr_bp(struct spi_nor *nor)
+{
+ int ret;
+ u8 mask = SR_BP2 | SR_BP1 | SR_BP0;
+ u8 sr_cr[2] = {0};
+
+ /* Check current Quad Enable bit value. */
+ ret = read_cr(nor);
+ if (ret < 0) {
+ dev_err(nor->dev,
+ "error while reading configuration register\n");
+ return ret;
+ }
+
+ /*
+ * When the configuration register Quad Enable bit is one, only the
+ * Write Status (01h) command with two data bytes may be used.
+ */
+ if (ret & CR_QUAD_EN_SPAN) {
+ sr_cr[1] = ret;
+
+ ret = read_sr(nor);
+ if (ret < 0) {
+ dev_err(nor->dev,
+ "error while reading status register\n");
+ return ret;
+ }
+ sr_cr[0] = ret & ~mask;
+
+ ret = write_sr_cr(nor, sr_cr);
+ if (ret)
+ dev_err(nor->dev, "16-bit write register failed\n");
+ return ret;
+ }
+
+ /*
+ * If the Quad Enable bit is zero, use the Write Status (01h) command
+ * with one data byte.
+ */
+ return spi_nor_clear_sr_bp(nor);
+}
+
/* Used when the "_ext_id" is two bytes at most */
#define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \
.id = { \
default:
/* Kept only for backward compatibility purpose. */
params->quad_enable = spansion_quad_enable;
+ if (nor->clear_sr_bp)
+ nor->clear_sr_bp = spi_nor_spansion_clear_sr_bp;
break;
}
{
int err;
- /*
- * Atmel, SST, Intel/Numonyx, and others serial NOR tend to power up
- * with the software protection bits set
- */
- if (JEDEC_MFR(nor->info) == SNOR_MFR_ATMEL ||
- JEDEC_MFR(nor->info) == SNOR_MFR_INTEL ||
- JEDEC_MFR(nor->info) == SNOR_MFR_SST ||
- nor->info->flags & SPI_NOR_HAS_LOCK) {
- write_enable(nor);
- write_sr(nor, 0);
- spi_nor_wait_till_ready(nor);
+ if (nor->clear_sr_bp) {
+ err = nor->clear_sr_bp(nor);
+ if (err) {
+ dev_err(nor->dev,
+ "fail to clear block protection bits\n");
+ return err;
+ }
}
if (nor->quad_enable) {
if (info->flags & SPI_S3AN)
nor->flags |= SNOR_F_READY_XSR_RDY;
+ /*
+ * Atmel, SST, Intel/Numonyx, and others serial NOR tend to power up
+ * with the software protection bits set.
+ */
+ if (JEDEC_MFR(nor->info) == SNOR_MFR_ATMEL ||
+ JEDEC_MFR(nor->info) == SNOR_MFR_INTEL ||
+ JEDEC_MFR(nor->info) == SNOR_MFR_SST ||
+ nor->info->flags & SPI_NOR_HAS_LOCK)
+ nor->clear_sr_bp = spi_nor_clear_sr_bp;
+
/* Parse the Serial Flash Discoverable Parameters table. */
ret = spi_nor_init_params(nor, ¶ms);
if (ret)
bond_dev->features |= NETIF_F_NETNS_LOCAL;
bond_dev->hw_features = BOND_VLAN_FEATURES |
- NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER;
bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
bond_dev->features |= bond_dev->hw_features;
+ bond_dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
}
/* Destroy a bonding device.
return PTR_ERR(dev->reset_gpio);
if (dev->reset_gpio) {
- gpiod_set_value(dev->reset_gpio, 1);
+ gpiod_set_value_cansleep(dev->reset_gpio, 1);
mdelay(10);
- gpiod_set_value(dev->reset_gpio, 0);
+ gpiod_set_value_cansleep(dev->reset_gpio, 0);
}
mutex_init(&dev->dev_mutex);
dsa_unregister_switch(dev->ds);
if (dev->reset_gpio)
- gpiod_set_value(dev->reset_gpio, 1);
+ gpiod_set_value_cansleep(dev->reset_gpio, 1);
}
EXPORT_SYMBOL(ksz_switch_remove);
return err;
if (aq_nic->ndev->features & NETIF_F_HW_VLAN_CTAG_FILTER) {
- if (hweight < AQ_VLAN_MAX_FILTERS)
- err = aq_hw_ops->hw_filter_vlan_ctrl(aq_hw, true);
+ if (hweight < AQ_VLAN_MAX_FILTERS && hweight > 0) {
+ err = aq_hw_ops->hw_filter_vlan_ctrl(aq_hw,
+ !(aq_nic->packet_filter & IFF_PROMISC));
+ aq_nic->aq_nic_cfg.is_vlan_force_promisc = false;
+ } else {
/* otherwise left in promiscue mode */
+ aq_nic->aq_nic_cfg.is_vlan_force_promisc = true;
+ }
}
return err;
if (unlikely(!aq_hw_ops->hw_filter_vlan_ctrl))
return -EOPNOTSUPP;
+ aq_nic->aq_nic_cfg.is_vlan_force_promisc = true;
err = aq_hw_ops->hw_filter_vlan_ctrl(aq_hw, false);
if (err)
return err;
cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk;
cfg->features = cfg->aq_hw_caps->hw_features;
+ cfg->is_vlan_force_promisc = true;
}
static int aq_nic_update_link_status(struct aq_nic_s *self)
u32 flow_control;
u32 link_speed_msk;
u32 wol;
+ bool is_vlan_force_promisc;
u16 is_mc_list_enabled;
u16 mc_list_count;
bool is_autoneg;
unsigned int packet_filter)
{
unsigned int i = 0U;
+ struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
+
+ hw_atl_rpfl2promiscuous_mode_en_set(self,
+ IS_FILTER_ENABLED(IFF_PROMISC));
+
+ hw_atl_rpf_vlan_prom_mode_en_set(self,
+ IS_FILTER_ENABLED(IFF_PROMISC) ||
+ cfg->is_vlan_force_promisc);
- hw_atl_rpfl2promiscuous_mode_en_set(self, IS_FILTER_ENABLED(IFF_PROMISC));
hw_atl_rpfl2multicast_flr_en_set(self,
IS_FILTER_ENABLED(IFF_ALLMULTI), 0);
hw_atl_rpfl2broadcast_en_set(self, IS_FILTER_ENABLED(IFF_BROADCAST));
- self->aq_nic_cfg->is_mc_list_enabled = IS_FILTER_ENABLED(IFF_MULTICAST);
+ cfg->is_mc_list_enabled = IS_FILTER_ENABLED(IFF_MULTICAST);
for (i = HW_ATL_B0_MAC_MIN; i < HW_ATL_B0_MAC_MAX; ++i)
hw_atl_rpfl2_uc_flr_en_set(self,
- (self->aq_nic_cfg->is_mc_list_enabled &&
- (i <= self->aq_nic_cfg->mc_list_count)) ?
- 1U : 0U, i);
+ (cfg->is_mc_list_enabled &&
+ (i <= cfg->mc_list_count)) ?
+ 1U : 0U, i);
return aq_hw_err_from_flags(self);
}
static int hw_atl_b0_hw_vlan_ctrl(struct aq_hw_s *self, bool enable)
{
/* set promisc in case of disabing the vland filter */
- hw_atl_rpf_vlan_prom_mode_en_set(self, !!!enable);
+ hw_atl_rpf_vlan_prom_mode_en_set(self, !enable);
return aq_hw_err_from_flags(self);
}
if (PTR_ERR(mac) == -EPROBE_DEFER) {
err = -EPROBE_DEFER;
goto err_out_free_netdev;
- } else if (!IS_ERR(mac)) {
+ } else if (!IS_ERR_OR_NULL(mac)) {
ether_addr_copy(bp->dev->dev_addr, mac);
} else {
macb_get_hwaddr(bp);
u64 *data)
{
struct be_adapter *adapter = netdev_priv(netdev);
- int status;
+ int status, cnt;
u8 link_status = 0;
if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) {
memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);
+ /* check link status before offline tests */
+ link_status = netif_carrier_ok(netdev);
+
if (test->flags & ETH_TEST_FL_OFFLINE) {
if (be_loopback_test(adapter, BE_MAC_LOOPBACK, &data[0]) != 0)
test->flags |= ETH_TEST_FL_FAILED;
test->flags |= ETH_TEST_FL_FAILED;
}
- status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
- if (status) {
- test->flags |= ETH_TEST_FL_FAILED;
- data[4] = -1;
- } else if (!link_status) {
+ /* link status was down prior to test */
+ if (!link_status) {
test->flags |= ETH_TEST_FL_FAILED;
data[4] = 1;
+ return;
+ }
+
+ for (cnt = 10; cnt; cnt--) {
+ status = be_cmd_link_status_query(adapter, NULL, &link_status,
+ 0);
+ if (status) {
+ test->flags |= ETH_TEST_FL_FAILED;
+ data[4] = -1;
+ break;
+ }
+
+ if (link_status)
+ break;
+
+ msleep_interruptible(500);
}
}
sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
/* Enable all known interrupts by setting the interrupt mask. */
- sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+ sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
sw32(cr, RxENA | sr32(cr));
sw32(ier, IE);
sw32(txdp, sis_priv->tx_ring_dma);
/* Enable all known interrupts by setting the interrupt mask. */
- sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+ sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
}
/**
spin_unlock_irqrestore(&sis_priv->lock, flags);
return NETDEV_TX_OK;
}
- sis_priv->tx_ring[entry].cmdsts = (OWN | skb->len);
+ sis_priv->tx_ring[entry].cmdsts = (OWN | INTR | skb->len);
sw32(cr, TxENA | sr32(cr));
sis_priv->cur_tx ++;
do {
status = sr32(isr);
- if ((status & (HIBERR|TxURN|TxERR|TxIDLE|RxORN|RxERR|RxOK)) == 0)
+ if ((status & (HIBERR|TxURN|TxERR|TxIDLE|TxDESC|RxORN|RxERR|RxOK)) == 0)
/* nothing intresting happened */
break;
handled = 1;
/* Rx interrupt */
sis900_rx(net_dev);
- if (status & (TxURN | TxERR | TxIDLE))
+ if (status & (TxURN | TxERR | TxIDLE | TxDESC))
/* Tx interrupt */
sis900_finish_xmit(net_dev);
if (tx_status & OWN) {
/* The packet is not transmitted yet (owned by hardware) !
- * Note: the interrupt is generated only when Tx Machine
- * is idle, so this is an almost impossible case */
+ * Note: this is an almost impossible condition
+ * in case of TxDESC ('descriptor interrupt') */
break;
}
sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
/* Enable all known interrupts by setting the interrupt mask. */
- sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+ sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
sw32(cr, RxENA | sr32(cr));
sw32(ier, IE);
* programmed with (2^32 – <new_sec_value>)
*/
if (gmac4)
- sec = (100000000ULL - sec);
+ sec = -sec;
value = readl(ioaddr + PTP_TCR);
if (value & PTP_TCR_TSCTRLSSR)
/* Manage tx mitigation */
tx_q->tx_count_frames += nfrags + 1;
- if (priv->tx_coal_frames <= tx_q->tx_count_frames) {
+ if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+ !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
+ (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+ priv->hwts_tx_en)) {
+ stmmac_tx_timer_arm(priv, queue);
+ } else {
+ tx_q->tx_count_frames = 0;
stmmac_set_tx_ic(priv, desc);
priv->xstats.tx_set_ic_bit++;
- tx_q->tx_count_frames = 0;
- } else {
- stmmac_tx_timer_arm(priv, queue);
}
skb_tx_timestamp(skb);
* element in case of no SG.
*/
tx_q->tx_count_frames += nfrags + 1;
- if (priv->tx_coal_frames <= tx_q->tx_count_frames) {
+ if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+ !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
+ (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+ priv->hwts_tx_en)) {
+ stmmac_tx_timer_arm(priv, queue);
+ } else {
+ tx_q->tx_count_frames = 0;
stmmac_set_tx_ic(priv, desc);
priv->xstats.tx_set_ic_bit++;
- tx_q->tx_count_frames = 0;
- } else {
- stmmac_tx_timer_arm(priv, queue);
}
skb_tx_timestamp(skb);
MODULE_DESCRIPTION("Point-to-Point Protocol Microsoft Point-to-Point Encryption support");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
+MODULE_SOFTDEP("pre: arc4");
MODULE_VERSION("1.0.2");
static unsigned int
dev->features |= NETIF_F_NETNS_LOCAL;
dev->hw_features = TEAM_VLAN_FEATURES |
- NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_FILTER;
dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
dev->features |= dev->hw_features;
+ dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
}
static int team_newlink(struct net *src_net, struct net_device *dev,
* different. Ignore the current interface if the number of endpoints
* equals the number for the diag interface (two).
*/
- info = (void *)&id->driver_info;
+ info = (void *)id->driver_info;
if (info->data & QMI_WWAN_QUIRK_QUECTEL_DYNCFG) {
if (desc->bNumEndpoints == 2)
{
struct dst_entry *dst = skb_dst(skb);
struct net_device *dev = dst->dev;
+ const struct in6_addr *nexthop;
struct neighbour *neigh;
- struct in6_addr *nexthop;
int ret;
nf_reset(skb);
void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,
eint->regs->mask_set);
+ eint->cur_mask[d->hwirq >> 5] &= ~mask;
+
writel(mask, reg);
}
void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,
eint->regs->mask_clr);
+ eint->cur_mask[d->hwirq >> 5] |= mask;
+
writel(mask, reg);
if (eint->dual_edge[d->hwirq])
}
}
-static void mtk_eint_chip_read_mask(const struct mtk_eint *eint,
- void __iomem *base, u32 *buf)
-{
- int port;
- void __iomem *reg;
-
- for (port = 0; port < eint->hw->ports; port++) {
- reg = base + eint->regs->mask + (port << 2);
- buf[port] = ~readl_relaxed(reg);
- /* Mask is 0 when irq is enabled, and 1 when disabled. */
- }
-}
-
static int mtk_eint_irq_request_resources(struct irq_data *d)
{
struct mtk_eint *eint = irq_data_get_irq_chip_data(d);
struct irq_chip *chip = irq_desc_get_chip(desc);
struct mtk_eint *eint = irq_desc_get_handler_data(desc);
unsigned int status, eint_num;
- int offset, index, virq;
+ int offset, mask_offset, index, virq;
void __iomem *reg = mtk_eint_get_offset(eint, 0, eint->regs->stat);
int dual_edge, start_level, curr_level;
status = readl(reg);
while (status) {
offset = __ffs(status);
+ mask_offset = eint_num >> 5;
index = eint_num + offset;
virq = irq_find_mapping(eint->domain, index);
status &= ~BIT(offset);
+ /*
+ * If we get an interrupt on pin that was only required
+ * for wake (but no real interrupt requested), mask the
+ * interrupt (as would mtk_eint_resume do anyway later
+ * in the resume sequence).
+ */
+ if (eint->wake_mask[mask_offset] & BIT(offset) &&
+ !(eint->cur_mask[mask_offset] & BIT(offset))) {
+ writel_relaxed(BIT(offset), reg -
+ eint->regs->stat +
+ eint->regs->mask_set);
+ }
+
dual_edge = eint->dual_edge[index];
if (dual_edge) {
/*
int mtk_eint_do_suspend(struct mtk_eint *eint)
{
- mtk_eint_chip_read_mask(eint, eint->base, eint->cur_mask);
mtk_eint_chip_write_mask(eint, eint->base, eint->wake_mask);
return 0;
if (ret < 0)
goto fail;
+ ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
+ if (ret < 0)
+ goto fail;
+
mcp->irq_controller =
device_property_read_bool(dev, "interrupt-controller");
if (mcp->irq && mcp->irq_controller) {
goto fail;
}
- ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
- if (ret < 0)
- goto fail;
-
if (one_regmap_config) {
mcp->pinctrl_desc.name = devm_kasprintf(dev, GFP_KERNEL,
"mcp23xxx-pinctrl.%d", raw_chip_address);
return -1;
}
-#define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32)))
+#define REG_ALT(msb, info, p) (OCELOT_GPIO_ALT0 * (info)->stride + 4 * ((msb) + ((info)->stride * ((p) / 32))))
static int ocelot_pinmux_set_mux(struct pinctrl_dev *pctldev,
unsigned int selector, unsigned int group)
/*
* f is encoded on two bits.
- * bit 0 of f goes in BIT(pin) of ALT0, bit 1 of f goes in BIT(pin) of
- * ALT1
+ * bit 0 of f goes in BIT(pin) of ALT[0], bit 1 of f goes in BIT(pin) of
+ * ALT[1]
* This is racy because both registers can't be updated at the same time
* but it doesn't matter much for now.
*/
- regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT0, info, pin->pin),
+ regmap_update_bits(info->map, REG_ALT(0, info, pin->pin),
BIT(p), f << p);
- regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT1, info, pin->pin),
+ regmap_update_bits(info->map, REG_ALT(1, info, pin->pin),
BIT(p), f << (p - 1));
return 0;
}
+#define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32)))
+
static int ocelot_gpio_set_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned int pin, bool input)
struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
unsigned int p = pin % 32;
- regmap_update_bits(info->map, REG(OCELOT_GPIO_OE, info, p), BIT(p),
+ regmap_update_bits(info->map, REG(OCELOT_GPIO_OE, info, pin), BIT(p),
input ? 0 : BIT(p));
return 0;
struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
unsigned int p = offset % 32;
- regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT0, info, offset),
+ regmap_update_bits(info->map, REG_ALT(0, info, offset),
BIT(p), 0);
- regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT1, info, offset),
+ regmap_update_bits(info->map, REG_ALT(1, info, offset),
BIT(p), 0);
return 0;
struct pvscsi_adapter *adapter = shost_priv(host);
struct pvscsi_ctx *ctx;
unsigned long flags;
+ unsigned char op;
spin_lock_irqsave(&adapter->hw_lock, flags);
}
cmd->scsi_done = done;
+ op = cmd->cmnd[0];
dev_dbg(&cmd->device->sdev_gendev,
- "queued cmd %p, ctx %p, op=%x\n", cmd, ctx, cmd->cmnd[0]);
+ "queued cmd %p, ctx %p, op=%x\n", cmd, ctx, op);
spin_unlock_irqrestore(&adapter->hw_lock, flags);
- pvscsi_kick_io(adapter, cmd->cmnd[0]);
+ pvscsi_kick_io(adapter, op);
return 0;
}
struct afs_super_info *as = AFS_FS_S(cbi->sb);
struct afs_volume *volume = as->volume;
- write_lock(&volume->cb_break_lock);
+ write_lock(&volume->cb_v_break_lock);
volume->cb_v_break++;
- write_unlock(&volume->cb_break_lock);
+ write_unlock(&volume->cb_v_break_lock);
} else {
data.volume = NULL;
data.fid = *fid;
dump_stack();
}
+/*
+ * Set the file size and block count. Estimate the number of 512 bytes blocks
+ * used, rounded up to nearest 1K for consistency with other AFS clients.
+ */
+static void afs_set_i_size(struct afs_vnode *vnode, u64 size)
+{
+ i_size_write(&vnode->vfs_inode, size);
+ vnode->vfs_inode.i_blocks = ((size + 1023) >> 10) << 1;
+}
+
/*
* Initialise an inode from the vnode status.
*/
return afs_protocol_error(NULL, -EBADMSG, afs_eproto_file_type);
}
- /*
- * Estimate 512 bytes blocks used, rounded up to nearest 1K
- * for consistency with other AFS clients.
- */
- inode->i_blocks = ((i_size_read(inode) + 1023) >> 10) << 1;
- i_size_write(&vnode->vfs_inode, status->size);
+ afs_set_i_size(vnode, status->size);
vnode->invalid_before = status->data_version;
inode_set_iversion_raw(&vnode->vfs_inode, status->data_version);
if (expected_version &&
*expected_version != status->data_version) {
- kdebug("vnode modified %llx on {%llx:%llu} [exp %llx] %s",
- (unsigned long long) status->data_version,
- vnode->fid.vid, vnode->fid.vnode,
- (unsigned long long) *expected_version,
- fc->type ? fc->type->name : "???");
+ if (test_bit(AFS_VNODE_CB_PROMISED, &vnode->flags))
+ pr_warn("kAFS: vnode modified {%llx:%llu} %llx->%llx %s\n",
+ vnode->fid.vid, vnode->fid.vnode,
+ (unsigned long long)*expected_version,
+ (unsigned long long)status->data_version,
+ fc->type ? fc->type->name : "???");
+
vnode->invalid_before = status->data_version;
if (vnode->status.type == AFS_FTYPE_DIR) {
if (test_and_clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags))
if (data_changed) {
inode_set_iversion_raw(&vnode->vfs_inode, status->data_version);
- i_size_write(&vnode->vfs_inode, status->size);
+ afs_set_i_size(vnode, status->size);
}
}
struct rxrpc_call *rxcall; /* RxRPC call handle */
struct key *key; /* security for this call */
struct afs_net *net; /* The network namespace */
- union {
- struct afs_server *server;
- struct afs_vlserver *vlserver;
- };
+ struct afs_server *server; /* The fileserver record if fs op (pins ref) */
+ struct afs_vlserver *vlserver; /* The vlserver record if vl op */
struct afs_cb_interest *cbi; /* Callback interest for server used */
struct afs_vnode *lvnode; /* vnode being locked */
void *request; /* request data (first part) */
unsigned int servers_seq; /* Incremented each time ->servers changes */
unsigned cb_v_break; /* Break-everything counter. */
- rwlock_t cb_break_lock;
+ rwlock_t cb_v_break_lock;
afs_voltype_t type; /* type of volume */
short error;
atomic_set(&volume->usage, 1);
INIT_LIST_HEAD(&volume->proc_link);
rwlock_init(&volume->servers_lock);
+ rwlock_init(&volume->cb_v_break_lock);
memcpy(volume->name, vldb->name, vldb->name_len + 1);
slist = afs_alloc_server_list(params->cell, params->key, vldb, type_mask);
state->cur_req++;
}
+ req->file = NULL;
req->ctx = ctx;
req->flags = 0;
/* one is dropped after submission, the other at completion */
req->sequence = ctx->cached_sq_head - 1;
}
- if (!io_op_needs_file(s->sqe)) {
- req->file = NULL;
+ if (!io_op_needs_file(s->sqe))
return 0;
- }
if (flags & IOSQE_FIXED_FILE) {
if (unlikely(!ctx->user_files ||
struct pid *tgid_pidfd_to_pid(const struct file *file)
{
- if (!d_is_dir(file->f_path.dentry) ||
- (file->f_op != &proc_tgid_base_operations))
+ if (file->f_op != &proc_tgid_base_operations)
return ERR_PTR(-EBADF);
return proc_pid(file_inode(file));
#define CLKID_MALI_1_SEL 172
#define CLKID_MALI_1 174
#define CLKID_MALI 175
-#define CLKID_MPLL_5OM 177
+#define CLKID_MPLL_50M 177
#define CLKID_CPU_CLK 187
#define CLKID_PCIE_PLL 201
#define CLKID_VDEC_1 204
void ishtp_get_device(struct ishtp_cl_device *cl_dev);
void ishtp_set_drvdata(struct ishtp_cl_device *cl_device, void *data);
void *ishtp_get_drvdata(struct ishtp_cl_device *cl_device);
+struct ishtp_cl_device *ishtp_dev_to_cl_device(struct device *dev);
int ishtp_register_event_cb(struct ishtp_cl_device *device,
void (*read_cb)(struct ishtp_cl_device *));
struct ishtp_fw_client *ishtp_fw_cl_get_client(struct ishtp_device *dev,
* @flash_unlock: [FLASH-SPECIFIC] unlock a region of the SPI NOR
* @flash_is_locked: [FLASH-SPECIFIC] check if a region of the SPI NOR is
* @quad_enable: [FLASH-SPECIFIC] enables SPI NOR quad mode
+ * @clear_sr_bp: [FLASH-SPECIFIC] clears the Block Protection Bits from
+ * the SPI NOR Status Register.
* completely locked
* @priv: the private data
*/
int (*flash_unlock)(struct spi_nor *nor, loff_t ofs, uint64_t len);
int (*flash_is_locked)(struct spi_nor *nor, loff_t ofs, uint64_t len);
int (*quad_enable)(struct spi_nor *nor);
+ int (*clear_sr_bp)(struct spi_nor *nor);
void *priv;
};
inet6_sk(sk)->pmtudisc == IPV6_PMTUDISC_OMIT;
}
-static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt,
- struct in6_addr *daddr)
+static inline const struct in6_addr *rt6_nexthop(const struct rt6_info *rt,
+ const struct in6_addr *daddr)
{
if (rt->rt6i_flags & RTF_GATEWAY)
return &rt->rt6i_gateway;
struct rtable *rt_dst_alloc(struct net_device *dev,
unsigned int flags, u16 type,
bool nopolicy, bool noxfrm, bool will_cache);
+struct rtable *rt_dst_clone(struct net_device *dev, struct rtable *rt);
struct in_ifaddr;
void fib_add_ifaddr(struct in_ifaddr *);
return !!ctx->partially_sent_record;
}
-static inline int tls_complete_pending_work(struct sock *sk,
- struct tls_context *ctx,
- int flags, long *timeo)
-{
- int rc = 0;
-
- if (unlikely(sk->sk_write_pending))
- rc = wait_on_pending_writer(sk, timeo);
-
- if (!rc && tls_is_partially_sent_record(ctx))
- rc = tls_push_partial_record(sk, ctx, flags);
-
- return rc;
-}
-
static inline bool tls_is_pending_open_record(struct tls_context *tls_ctx)
{
return tls_ctx->pending_open_record_frags;
#endif
};
-/**
- * pidfd_create() - Create a new pid file descriptor.
- *
- * @pid: struct pid that the pidfd will reference
- *
- * This creates a new pid file descriptor with the O_CLOEXEC flag set.
- *
- * Note, that this function can only be called after the fd table has
- * been unshared to avoid leaking the pidfd to the new process.
- *
- * Return: On success, a cloexec pidfd is returned.
- * On error, a negative errno number will be returned.
- */
-static int pidfd_create(struct pid *pid)
-{
- int fd;
-
- fd = anon_inode_getfd("[pidfd]", &pidfd_fops, get_pid(pid),
- O_RDWR | O_CLOEXEC);
- if (fd < 0)
- put_pid(pid);
-
- return fd;
-}
-
static void __delayed_free_task(struct rcu_head *rhp)
{
struct task_struct *tsk = container_of(rhp, struct task_struct, rcu);
int pidfd = -1, retval;
struct task_struct *p;
struct multiprocess_signals delayed;
+ struct file *pidfile = NULL;
/*
* Don't allow sharing the root directory with processes in a different
}
if (clone_flags & CLONE_PIDFD) {
- int reserved;
-
/*
* - CLONE_PARENT_SETTID is useless for pidfds and also
* parent_tidptr is used to return pidfds.
if (clone_flags &
(CLONE_DETACHED | CLONE_PARENT_SETTID | CLONE_THREAD))
return ERR_PTR(-EINVAL);
-
- /*
- * Verify that parent_tidptr is sane so we can potentially
- * reuse it later.
- */
- if (get_user(reserved, parent_tidptr))
- return ERR_PTR(-EFAULT);
-
- if (reserved != 0)
- return ERR_PTR(-EINVAL);
}
/*
* if the fd table isn't shared).
*/
if (clone_flags & CLONE_PIDFD) {
- retval = pidfd_create(pid);
+ retval = get_unused_fd_flags(O_RDWR | O_CLOEXEC);
if (retval < 0)
goto bad_fork_free_pid;
pidfd = retval;
+
+ pidfile = anon_inode_getfile("[pidfd]", &pidfd_fops, pid,
+ O_RDWR | O_CLOEXEC);
+ if (IS_ERR(pidfile)) {
+ put_unused_fd(pidfd);
+ goto bad_fork_free_pid;
+ }
+ get_pid(pid); /* held by pidfile now */
+
retval = put_user(pidfd, parent_tidptr);
if (retval)
goto bad_fork_put_pidfd;
goto bad_fork_cancel_cgroup;
}
+ /* past the last point of failure */
+ if (pidfile)
+ fd_install(pidfd, pidfile);
init_task_pid_links(p);
if (likely(p->pid)) {
bad_fork_cgroup_threadgroup_change_end:
cgroup_threadgroup_change_end(current);
bad_fork_put_pidfd:
- if (clone_flags & CLONE_PIDFD)
- ksys_close(pidfd);
+ if (clone_flags & CLONE_PIDFD) {
+ fput(pidfile);
+ put_unused_fd(pidfd);
+ }
bad_fork_free_pid:
if (pid != &init_struct_pid)
free_pid(pid);
struct in6_addr *daddr,
struct sk_buff *skb)
{
- struct lowpan_peer *peer;
- struct in6_addr *nexthop;
struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
int count = atomic_read(&dev->peer_count);
+ const struct in6_addr *nexthop;
+ struct lowpan_peer *peer;
BT_DBG("peers %d addr %pI6c rt %p", count, daddr, rt);
static int ip_mc_finish_output(struct net *net, struct sock *sk,
struct sk_buff *skb)
{
+ struct rtable *new_rt;
int ret;
ret = BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb);
return ret;
}
+ /* Reset rt_iif so that inet_iif() will return skb->skb_iif. Setting
+ * this to non-zero causes ipi_ifindex in in_pktinfo to be overwritten,
+ * see ipv4_pktinfo_prepare().
+ */
+ new_rt = rt_dst_clone(net->loopback_dev, skb_rtable(skb));
+ if (new_rt) {
+ new_rt->rt_iif = 0;
+ skb_dst_drop(skb);
+ skb_dst_set(skb, &new_rt->dst);
+ }
+
return dev_loopback_xmit(net, sk, skb);
}
}
sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,
iph->saddr, iph->daddr,
- skb->dev->ifindex, sdif);
+ dif, sdif);
}
out:
read_unlock(&raw_v4_hashinfo.lock);
}
EXPORT_SYMBOL(rt_dst_alloc);
+struct rtable *rt_dst_clone(struct net_device *dev, struct rtable *rt)
+{
+ struct rtable *new_rt;
+
+ new_rt = dst_alloc(&ipv4_dst_ops, dev, 1, DST_OBSOLETE_FORCE_CHK,
+ rt->dst.flags);
+
+ if (new_rt) {
+ new_rt->rt_genid = rt_genid_ipv4(dev_net(dev));
+ new_rt->rt_flags = rt->rt_flags;
+ new_rt->rt_type = rt->rt_type;
+ new_rt->rt_is_input = rt->rt_is_input;
+ new_rt->rt_iif = rt->rt_iif;
+ new_rt->rt_pmtu = rt->rt_pmtu;
+ new_rt->rt_mtu_locked = rt->rt_mtu_locked;
+ new_rt->rt_gw_family = rt->rt_gw_family;
+ if (rt->rt_gw_family == AF_INET)
+ new_rt->rt_gw4 = rt->rt_gw4;
+ else if (rt->rt_gw_family == AF_INET6)
+ new_rt->rt_gw6 = rt->rt_gw6;
+ INIT_LIST_HEAD(&new_rt->rt_uncached);
+
+ new_rt->dst.flags |= DST_HOST;
+ new_rt->dst.input = rt->dst.input;
+ new_rt->dst.output = rt->dst.output;
+ new_rt->dst.error = rt->dst.error;
+ new_rt->dst.lastuse = jiffies;
+ new_rt->dst.lwtstate = lwtstate_get(rt->dst.lwtstate);
+ }
+ return new_rt;
+}
+EXPORT_SYMBOL(rt_dst_clone);
+
/* called in rcu_read_lock() section */
int ip_mc_validate_source(struct sk_buff *skb, __be32 daddr, __be32 saddr,
u8 tos, struct net_device *dev,
{
struct dst_entry *dst = skb_dst(skb);
struct net_device *dev = dst->dev;
+ const struct in6_addr *nexthop;
struct neighbour *neigh;
- struct in6_addr *nexthop;
int ret;
if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
{
const struct rt6_info *rt = container_of(dst, struct rt6_info, dst);
- return ip6_neigh_lookup(&rt->rt6i_gateway, dst->dev, skb, daddr);
+ return ip6_neigh_lookup(rt6_nexthop(rt, &in6addr_any),
+ dst->dev, skb, daddr);
}
static void ip6_confirm_neigh(const struct dst_entry *dst, const void *daddr)
.data = &init_net.ipv6.sysctl.skip_notify_on_dev_down,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
},
struct nf_flowtable *flow_table = priv;
struct flow_offload_tuple tuple = {};
enum flow_offload_tuple_dir dir;
+ const struct in6_addr *nexthop;
struct flow_offload *flow;
struct net_device *outdev;
- struct in6_addr *nexthop;
struct ipv6hdr *ip6h;
struct rt6_info *rt;
ts = __packet_set_timestamp(po, ph, skb);
__packet_set_status(po, ph, TP_STATUS_AVAILABLE | ts);
+
+ if (!packet_read_pending(&po->tx_ring))
+ complete(&po->skb_completion);
}
sock_wfree(skb);
static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
{
- struct sk_buff *skb;
+ struct sk_buff *skb = NULL;
struct net_device *dev;
struct virtio_net_hdr *vnet_hdr = NULL;
struct sockcm_cookie sockc;
int len_sum = 0;
int status = TP_STATUS_AVAILABLE;
int hlen, tlen, copylen = 0;
+ long timeo = 0;
mutex_lock(&po->pg_vec_lock);
if ((size_max > dev->mtu + reserve + VLAN_HLEN) && !po->has_vnet_hdr)
size_max = dev->mtu + reserve + VLAN_HLEN;
+ reinit_completion(&po->skb_completion);
+
do {
ph = packet_current_frame(po, &po->tx_ring,
TP_STATUS_SEND_REQUEST);
if (unlikely(ph == NULL)) {
- if (need_wait && need_resched())
- schedule();
+ if (need_wait && skb) {
+ timeo = sock_sndtimeo(&po->sk, msg->msg_flags & MSG_DONTWAIT);
+ timeo = wait_for_completion_interruptible_timeout(&po->skb_completion, timeo);
+ if (timeo <= 0) {
+ err = !timeo ? -ETIMEDOUT : -ERESTARTSYS;
+ goto out_put;
+ }
+ }
+ /* check for additional frames */
continue;
}
sock_init_data(sock, sk);
po = pkt_sk(sk);
+ init_completion(&po->skb_completion);
sk->sk_family = PF_PACKET;
po->num = proto;
po->xmit = dev_queue_xmit;
req3->tp_sizeof_priv ||
req3->tp_feature_req_word) {
err = -EINVAL;
- goto out;
+ goto out_free_pg_vec;
}
}
break;
prb_shutdown_retire_blk_timer(po, rb_queue);
}
+out_free_pg_vec:
if (pg_vec)
free_pg_vec(pg_vec, order, req->tp_block_nr);
out:
unsigned int tp_hdrlen;
unsigned int tp_reserve;
unsigned int tp_tstamp;
+ struct completion skb_completion;
struct net_device __rcu *cached_dev;
int (*xmit)(struct sk_buff *skb);
struct packet_type prot_hook ____cacheline_aligned_in_smp;
static int __init cbs_module_init(void)
{
- int err = register_netdevice_notifier(&cbs_device_notifier);
+ int err;
+ err = register_netdevice_notifier(&cbs_device_notifier);
if (err)
return err;
- return register_qdisc(&cbs_qdisc_ops);
+ err = register_qdisc(&cbs_qdisc_ops);
+ if (err)
+ unregister_netdevice_notifier(&cbs_device_notifier);
+
+ return err;
}
static void __exit cbs_module_exit(void)
/* Initialize the bind addr area */
sctp_bind_addr_init(&ep->base.bind_addr, 0);
- /* Remember who we are attached to. */
- ep->base.sk = sk;
- sock_hold(ep->base.sk);
-
/* Create the lists of associations. */
INIT_LIST_HEAD(&ep->asocs);
ep->prsctp_enable = net->sctp.prsctp_enable;
ep->reconf_enable = net->sctp.reconf_enable;
+ /* Remember who we are attached to. */
+ ep->base.sk = sk;
+ sock_hold(ep->base.sk);
+
return ep;
nomem_shkey:
rc = smc_pnet_init();
if (rc)
- return rc;
+ goto out_pernet_subsys;
rc = smc_llc_init();
if (rc) {
proto_unregister(&smc_proto);
out_pnet:
smc_pnet_exit();
+out_pernet_subsys:
+ unregister_pernet_subsys(&smc_net_ops);
+
return rc;
}
rc = smc_lgr_create(smc, ini);
if (rc)
goto out;
+ lgr = conn->lgr;
+ write_lock_bh(&lgr->conns_lock);
smc_lgr_register_conn(conn); /* add smc conn to lgr */
+ write_unlock_bh(&lgr->conns_lock);
}
conn->local_tx_ctrl.common.type = SMC_CDC_MSG_TYPE;
conn->local_tx_ctrl.len = SMC_WR_TX_SIZE;
if (err)
goto out_sysctl;
- err = register_pernet_subsys(&tipc_net_ops);
+ err = register_pernet_device(&tipc_net_ops);
if (err)
goto out_pernet;
if (err)
goto out_socket;
- err = register_pernet_subsys(&tipc_topsrv_net_ops);
+ err = register_pernet_device(&tipc_topsrv_net_ops);
if (err)
goto out_pernet_topsrv;
pr_info("Started in single node mode\n");
return 0;
out_bearer:
- unregister_pernet_subsys(&tipc_topsrv_net_ops);
+ unregister_pernet_device(&tipc_topsrv_net_ops);
out_pernet_topsrv:
tipc_socket_stop();
out_socket:
- unregister_pernet_subsys(&tipc_net_ops);
+ unregister_pernet_device(&tipc_net_ops);
out_pernet:
tipc_unregister_sysctl();
out_sysctl:
static void __exit tipc_exit(void)
{
tipc_bearer_cleanup();
- unregister_pernet_subsys(&tipc_topsrv_net_ops);
+ unregister_pernet_device(&tipc_topsrv_net_ops);
tipc_socket_stop();
- unregister_pernet_subsys(&tipc_net_ops);
+ unregister_pernet_device(&tipc_net_ops);
tipc_netlink_stop();
tipc_netlink_compat_stop();
tipc_unregister_sysctl();
if (!bearer)
return -EMSGSIZE;
- len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_BEARER_NAME);
+ len = TLV_GET_DATA_LEN(msg->req);
+ if (len <= 0)
+ return -EINVAL;
+
+ len = min_t(int, len, TIPC_MAX_BEARER_NAME);
if (!string_is_valid(name, len))
return -EINVAL;
name = (char *)TLV_DATA(msg->req);
- len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME);
+ len = TLV_GET_DATA_LEN(msg->req);
+ if (len <= 0)
+ return -EINVAL;
+
+ len = min_t(int, len, TIPC_MAX_BEARER_NAME);
if (!string_is_valid(name, len))
return -EINVAL;
if (!link)
return -EMSGSIZE;
- len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME);
+ len = TLV_GET_DATA_LEN(msg->req);
+ if (len <= 0)
+ return -EINVAL;
+
+ len = min_t(int, len, TIPC_MAX_BEARER_NAME);
if (!string_is_valid(name, len))
return -EINVAL;
goto skip_tx_cleanup;
}
- if (!tls_complete_pending_work(sk, ctx, 0, &timeo))
+ if (unlikely(sk->sk_write_pending) &&
+ !wait_on_pending_writer(sk, &timeo))
tls_handle_open_record(sk, 0);
/* We need these for tls_sw_fallback handling of other packets */
int main(int argc, char *argv[])
{
- int pidfd = 0, ret = EXIT_FAILURE;
+ int pidfd = -1, ret = EXIT_FAILURE;
char buf[4096] = { 0 };
pid_t pid;
int procfd, statusfd;
pid = pidfd_clone(CLONE_PIDFD, &pidfd);
if (pid < 0)
- exit(ret);
+ err(ret, "CLONE_PIDFD");
+ if (pidfd == -1) {
+ warnx("CLONE_PIDFD is not supported by the kernel");
+ goto out;
+ }
procfd = pidfd_metadata_fd(pid, pidfd);
close(pidfd);
tempfile
prot_sao
segv_errors
-wild_bctr
\ No newline at end of file
+wild_bctr
+large_vm_fork_separation
\ No newline at end of file
noarg:
$(MAKE) -C ../
-TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors wild_bctr
+TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors wild_bctr \
+ large_vm_fork_separation
TEST_GEN_FILES := tempfile
top_srcdir = ../../../../..
$(OUTPUT)/prot_sao: ../utils.c
$(OUTPUT)/wild_bctr: CFLAGS += -m64
+$(OUTPUT)/large_vm_fork_separation: CFLAGS += -m64
$(OUTPUT)/tempfile:
dd if=/dev/zero of=$@ bs=64k count=1
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2019, Michael Ellerman, IBM Corp.
+//
+// Test that allocating memory beyond the memory limit and then forking is
+// handled correctly, ie. the child is able to access the mappings beyond the
+// memory limit and the child's writes are not visible to the parent.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+
+#ifndef MAP_FIXED_NOREPLACE
+#define MAP_FIXED_NOREPLACE MAP_FIXED // "Should be safe" above 512TB
+#endif
+
+
+static int test(void)
+{
+ int p2c[2], c2p[2], rc, status, c, *p;
+ unsigned long page_size;
+ pid_t pid;
+
+ page_size = sysconf(_SC_PAGESIZE);
+ SKIP_IF(page_size != 65536);
+
+ // Create a mapping at 512TB to allocate an extended_id
+ p = mmap((void *)(512ul << 40), page_size, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE, -1, 0);
+ if (p == MAP_FAILED) {
+ perror("mmap");
+ printf("Error: couldn't mmap(), confirm kernel has 4TB support?\n");
+ return 1;
+ }
+
+ printf("parent writing %p = 1\n", p);
+ *p = 1;
+
+ FAIL_IF(pipe(p2c) == -1 || pipe(c2p) == -1);
+
+ pid = fork();
+ if (pid == 0) {
+ FAIL_IF(read(p2c[0], &c, 1) != 1);
+
+ pid = getpid();
+ printf("child writing %p = %d\n", p, pid);
+ *p = pid;
+
+ FAIL_IF(write(c2p[1], &c, 1) != 1);
+ FAIL_IF(read(p2c[0], &c, 1) != 1);
+ exit(0);
+ }
+
+ c = 0;
+ FAIL_IF(write(p2c[1], &c, 1) != 1);
+ FAIL_IF(read(c2p[0], &c, 1) != 1);
+
+ // Prevent compiler optimisation
+ barrier();
+
+ rc = 0;
+ printf("parent reading %p = %d\n", p, *p);
+ if (*p != 1) {
+ printf("Error: BUG! parent saw child's write! *p = %d\n", *p);
+ rc = 1;
+ }
+
+ FAIL_IF(write(p2c[1], &c, 1) != 1);
+ FAIL_IF(waitpid(pid, &status, 0) == -1);
+ FAIL_IF(!WIFEXITED(status) || WEXITSTATUS(status));
+
+ if (rc == 0)
+ printf("success: test completed OK\n");
+
+ return rc;
+}
+
+int main(void)
+{
+ return test_harness(test, "large_vm_fork_separation");
+}
projects / platform / kernel / linux-starfive.git / commitdiff